go-libp2p v0.22

[marten-seemann]

🗺 What's left for release

AutoRelay Polling

• make AutoRelay ask the application for new candidates #1569

Consolidation

Tracking issue: #1556

Misc

• change the default key type to Ed25519 #1576

🔦 Highlights

This release finishes our long-term effort of consolidating repositories (#1556), turning go-libp2p into a mono-repo. In this release, we've moved the last 4 remaining repositories here:

• https://github.com/libp2p/go-libp2p-resource-manager
• https://github.com/libp2p/go-libp2p-peerstore
• https://github.com/libp2p/go-eventbus
• https://github.com/libp2p/go-libp2p-core

As with our last consolidation release (v0.20.0), this means that some import paths might have changed. The recommended way of updating is the following:

1. Run go get -u ./.... This will pull in updated dependencies, including updates for all the repositories listed above.
2. Run staticcheck ./.... All repositories listed above were deprecated, and staticcheck will generate errors when they are imported.

Other noteworthy changes.

• When no Identity is passed to libp2p.New, we generate a private key for you. We now generate an Ed25519 key instead of a RSA key (change the default key type to Ed25519 #1576).
• AutoRelay now actively polls for new candidates, instead of expecting the application to continously deliver new candidates (make AutoRelay ask the application for new candidates #1569).

< top highlights for this release notes >

Changelog

< changelog generated by scripts/mkreleaselog >

✅ Release Checklist

• Stage 0 - Finishing Touches
  • Go through relevant libp2p repos looking for unreleased changes that should make it into the release. If you find any, cut releases.
  • Run go get -u ./... to see if there are any out-of-date deps that look important. If there are, bubble them. Try to avoid directly updating indirect deps in go-libp2p's go.mod when possible.
  • Make sure local tests are passing.
• Stage 1 - Upstream Testing
  • Create testing branches in lotus & go-ipfs with the new go-libp2p release and run CI/tests. Many upstream projects are tested in CI, but lotus & go-ipfs are not.
    • filecoin-project/lotus
    • ipfs/go-ipfs
  • (someday) Run upstream testground tests. Unfortunately, this is too time consuming at the moment.
    • (someday) Run bitswap testground tests.
    • (someday) Run DHT testground tests.
• Stage 2 - Infrastructure Testing
  • How: Using the testing branches created above, work with the infrastructure team to deploy the new libp2p versions to our infrastructure.
  • Where:
    • A go-ipfs gateway.
      • Deploy
      • Analyze
        • Look at pprof profile dumps, especially CPU profiles and heap allocation profiles, noting any significant changes.
    • A go-ipfs bootstrapper.
      • Deploy
      • Analyze
        • Look at pprof profile dumps, especially CPU profiles and heap allocation profiles, noting any significant changes.
        • Check peers (e.g., ipfs swarm peers) to make sure we're connecting to peers on all transports.
        • Check advertised addresses and protocols (e.g., ipfs id) to make sure they're sane.
• Stage 3 - Release
  • Tag the release on master.
  • Publish the release through the GitHub UI, adding the release notes. Some users rely on this to receive notifications of new releases.
  • Announce the release on the discuss.libp2p.io.
• Stage 4 - Update Upstream
  • Update the examples to the final release
  • Update the upstream testing branches to the final release and create PRs.
    • filecoin-project/lotus
    • ipfs/go-bitswap
    • ipfs/go-ipfs
    • libp2p/go-libp2p-kad-dht
    • libp2p/go-libp2p-pubsub
    • libp2p/go-libp2p-daemon
• deprecate repos
  • https://github.com/libp2p/go-eventbus
  • https://github.com/libp2p/go-libp2p-resource-manager
  • https://github.com/libp2p/go-libp2p-peerstore
  • https://github.com/libp2p/go-libp2p-core
• Make required changes to the release process.

[BigLep]

Closing since release happened (https://github.com/libp2p/go-libp2p/releases/tag/v0.22.0 ) and release process updated were made.